I think this is almost certainly a female Muntjac skull. An earlier post suggested correctly that it wasn't fox or badger - that was certainly correct but the reason stated was the lack of a cranial ridge (sagittal crest). However the real give away is the toth structure which is totally unlike a carnivorous mammal. The shape of the cranium as seen in the dorsal view seems wrong for Roe Deer but I also note there are deep depressions in front of the eye socket (see the lateral view) which are much too large to resemble my Roe deer skull, yet these are a significant feature of Muntjac skulls.